The Fish-Man District was part of Ryugu Kingdom that was notorious for being one of the tougher parts of Fish-Man Island. It was previously the main base of operations of the New Fish-Man Pirates until their imprisonment and subsequently closed off by the kingdom.[2]
In the beginning, it was a giant institution for orphaned children. But eventually it was unsettled and therefore the institution became a lawless district where the outcasts of Fish-Man Island gathered. Fisher Tiger eventually declared himself the boss of the location, and protected his fellow fish-men within the area.[3] The zone consisted of a massive ark where fish-men lived in and around. This was the base of the New Fish-Man Pirates. The Fish-Man District was not part of Fish-Man Island but was located somewhere outside it since Vander Decken IX said he sent the ship on a course to Fish-Man Island while they where already in the Fish-Man District.
Fish-Man Island Saga[]
Fish-Man Island Arc[]
The giant ship seen in the district, Noah, is hundreds of years old and awaits the promised day when it will be used for the purpose it was built for.[3] The ship left the district when Decken returned to it and locked it onto Shirahoshi.
After the battle for Fish-Man Island had ended, Neptune realized how long they overlooked the criminals that lived in the Fish-Man District. The king then orders the Fish-Man District to be closed off.[2]
↑ 3.03.1One Piece Manga and Anime — Vol. 63Chapter 621 (p. 18) and Episode 540, Jinbe explains about Tiger declaring the district his territory, and Noah's purpose.
